Improvement in piston-packings



S. N. GOODALE.

improvement in Piton-Packing.

Patented Aug. 6, i872.

. UNITED STATES PATENT OFFICE.

SAMUEL N. GooDALE, or sr. LOUIS, MISSOURI.

IMPROVEMENT IN PISTON-PACKINGS.

Specification forming part of Leiters Patent No. 130,214, dated August6, 1372.

SPECIFICATION.

To all whom it may concern:

Be it known that I, SAMUEL N. GooDALE, of St. Louis, county of St.Louis, State of Missouri, have invented certain new and usefulImprovements in Steam -or Air Piston-Rod Packing and Stuffing-Boxes, theobject of which is to furnish a packing easily manufactured at a reducedrate, and which shall be, in all respects, more simple and durable thanany before used; and being put into the market in rings of differentsizes, or in one continuous piece, to be cnt into suitable, convenientsizes to fit a piston-rod or stufng-box 0f any dimension; and I dohereby declare that the following is a full, clear, and exactdescription of the same, which will enable others skilled in the art towhich it appertains to make and use the same, reference being had to theaccompanying drawing making a part of this specification, in which-Figure l is a perspective view of a ring formed of my improved packing;and Fig. 2 is a longitudinal section of a cylinder, stufng-box, andpistonrod with the packing in place.

Like letters of reference indicate like parts.

A, Fig. l, represents the packing, which is composed of manufacturedfibrous material, such as clothor canvas, folded and stitched in themanner shown. By having the packing united byone, two, or more rowsofstitches the material is held firmly together, and the stitches formseams or crevices, in which,

, when the packing is pressed in place against the cylinder, the air iscompressed, whereby it is impossible for the steam to escape. Thepacking is first made of one continuous piece, and then cut in anydesired size, and put together by a break-joint,77 as shown at a', Fig.l. The packing is made of any desired thickness, the outside being ofcloth or canvas, and the inside of the same material, or of fibrousmaterial of any other form. B, Fig. 2, indicates a cylinder of the usualform; C, a piston-rod, to one end of which is attached the stufiing-boxD. The gland E is apertured in the center to pass upon the rod C, andadjustably attached to the stuffing-box by screwbolts and nuts F F. A,Fig. 2, represents the packing in place. The stuffing-box is made convexon the inside, and the gland is made lconcave to correspond. TheStuffing-box and gland are made with dan ges c and d, the faces o whichincline downward and inward toward each other, as shown, the object ofwhich is to press the packing A outward against the cylinder more firmlyas the screw-bolts arc tightened and the gland E drawn up.

I am aware that packin g composed of brous material has been used bystitching together several layers of canvas and cutting the same betweenthe rows of stitches. This cutting leaves a rough ragged edge, whichstrings out,77 and catches between the edges of the stuffing-box, gland,and cylinder or piston-rod, whenever the same may be used. By myimproved packing this ditticulty is obvia-ted, as `the packing is rstfolded and then stitched. The edges of the same are left smooth, and thepacking compact throughout.

I do not, therefore, claim, broadly, the use of a fibrous material forpacking 5 but,

.Having thus fully described my invention, what I do claim, and desireto secure by Letters Patent, is-

As a new article of manufacture, the pack in g A, when folded andstitched so as to leave the edges smooth, and composed of the fibrousmaterial, substantially as shown and described, and for the purpose setforth.

SAMUEL N. GOODALE.

Witnesses T. C. CoNNoLLY, F. A. LEHMANN.-

